Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 072123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT MON SEP 07 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 7 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 81 3:59 PM 97 2023 82 -1 78
MINIMUM 59 4:42 AM 41 1976 61 -2 51
AVERAGE 70 72 -2 65
PRECIPITATION (IN)
TODAY 0.00 1.11 2011 0.12 -0.12 0.01
MONTH TO DATE 0.83 0.85 -0.02 0.03
SINCE SEP 1 0.83 0.85 -0.02 0.03
SINCE JAN 1 30.23 30.07 0.16 24.67
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 1 -1 2
COOLING
TODAY 5 7 -2 0
MONTH TO DATE 91 54 37 38
SINCE SEP 1 91 54 37 38
SINCE JAN 1 1371 1110 261 1186
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1:00 AM
LOWEST 39 4:00 PM
AVERAGE 65
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 96 2016
MINIMUM TEMPERATURE (F) 61 43 1984
SUNRISE AND SUNSET
SEPTEMBER 7 2026.....SUNRISE 6:44 AM EDT SUNSET 7:31 PM EDT
SEPTEMBER 8 2026.....SUNRISE 6:45 AM EDT SUNSET 7:29 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$